The Sample Size Needed to Estimate a Population Mean to Within

question 80

Multiple Choice

The sample size needed to estimate a population mean to within 50 units was found to be 97.If the population standard deviation was 250,then the confidence level used was

• A)90%
• B)95%
• C)99%
• D)None of these choices.

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Definitions:

Spiders

Arachnids characterized by eight legs, a chelicerae with fangs that inject venom, and the ability to spin webs.

Intrinsic Motive

A form of motivation driven by internal rewards, such as personal satisfaction, curiosity, or enjoyment, rather than external factors.

Biological Motive

An innate drive stemming from biological needs that motivates behavior, such as hunger, thirst, or the drive for sleep.

Homeostasis

is the process by which living organisms regulate their internal environment to maintain stable, optimal conditions despite external changes.